Edwin bjeckwith



'declare the iollowng'to he a full,

special reference to spring action,

having" the improved form of spring.

"the horizontal.'

No. weeen.

linnen 'Senses Petentef February 16. @2%.

EDWN BEUKVTH, Nidi? YORK, El.

y eveieinssee SPECJF1CAT10N formingpart of Letters "Batent No. 752,280, dated February i6, iQ-h Application filed JulyZ, 1902. Serial Ho. lld. (No modali) I Ze w33 whom it m/wy concern:

Be it known that I, Enwn Bnonwi'm, seitinen of the United States, residing in the city ei New York, in the county and State of New vioirl, have invented a. certain new and useful Improvement in Eyeglasses; and l do hereby clear, and exact description of the invention, such as will enable others skilled in the art to which it appeitains to make and use the saine.

This invention relates to eyeglasses, and has the spring attached to e post at either end which connects the two lenses. i.

In eyeglasses as Vformerly made and in geners use much inconvenience is experienced by `the ,user because of the tendency'of the spring. to become weakened, to be insecurely adjusted to the nose,.not remainingA in its fixed or deshred positionnpon the nose, being unable to edjust itself to the nos'e'with more than one requiring frequent adjustments for the desired position of the eyeglesses'upon the nose.

It is, the ob'ectoi Lheinventon to eonstrct' the springs() that in combination withthe lenses, nose-guards, posts, or' studs an action is eli'ected which brings into use .elli of the known spi-ing movement whether horizontal, perpendicular, oblir ne, angular, outward or inward, upward or downwardpr any known motions or actions lipon' any given plane. These various actions of vent the eyeglasses 'from tipping forward or backward, will enable the glasses to he edjusted to the peculiar formationor sizeof the nose oi any person, end will enablethe glass to be always' secure to the nose and s'et on e. horizontal plane with the eyes.

' Devices embodying my improvement' ere represented .in the accompanying drawings, es hereinafter described-end claimed.

Figure i is a side elevation of my eyeglasr, e dotted lines show one of the planesot' action-- my glasses having the ne'w form of spring. The dotted lines in this figure show another plane of actionf-the perpendicular. Fig. 3 shows a front elevation' of one form of my 'new spx-ing `the spring will pre- Fig..2 is a front elevation olil detached. Fig. #i shows aside eievetion. Eig. 5 shows e front elevation of my new spring, het having e di'deent angle than Fig. 3. ig. 6 is a side elevation of the spring, es shown in Fig. Fig. 7 shows another' single of my spring and the dotted lines show dieient Widths. Figf shows the side elevation ci the spring, es shown in Fig. 7.

4in the di'ewings, L iepiesents the lenses ettaehed by screws to the post F. gpcst l? has Vflanges extending peri, wey eiong the end oi1 the lens L. y @nto the opposite ends of the post F are. attached 'the nose-guards G in the usual mennen The spiing S, as shown in Figs. 3 and s end in Figs. 1 end 2 in combination, is 'made so that en elastic action thereof niey he exerted in any direction. This is accomplished by curving the top end center outward, foiward, and upwerd,thinning end narrowing the metal etthe centen, so that it will act et that point lilie e. pivot, enebling; the eyeglasses to move .horizcnteil perpendicnleriy, bhliquely., engulefly, or in any conceivable' 'direction or piene. 'fhisspring hes its thinnest point-et the center, the wells thereof Being gradually thickened' end widened, so thatfthe ends, which -arefettached to the posts, are practically rigid and unyielding. en opening through which screws pass, en shling the spring the post F and exerted cordinately.

l do not desire to centime myself to any nerticuler engelen' shape. i have shownA tl'i'ee different angles in the drawings. Many different angles may he used and still embody The ends of the spring'lievey to be securely attached to' guerd G.` Ey didnsing the gi'ipl oi the spring; by eensteneting it ehove thetthere issn-equal presseie .8

leo.

spring` becomes practically invisible, which is 'one of the objects desired and is an advantage which I claim for my spring'.

Having thus described Iny invention, I claim` and desire to secure by Letters Patent- In eyeglasses the combination of a pair of material and so shaping it tha-t the most exposed part of the springis thin the lenses attached to clamping-posts, provided with nose-guards and an elastic angular spring made narrow and thin in the center with gradually `widened and vthickened walls toward the ends, whereby the eyeglasses may move angularly in every direction, -substan tially as described. u

In testimony that I claim the foregoing as my invention I have hereunto signed my name this 1st day of July, A. D. 1902.

EDWIN BECKWITH.

`In presence of- FRED C. HANFORD, RUSSELL G. LUoAs. 

